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A kagome lattice is composed of corner-sharing triangles arranged on a honeycomb lattice such that each honeycomb bond hosts a kagome site while each kagome triangle encloses a honeycomb site. Such close relation implies that the two…

Mesoscale and Nanoscale Physics · Physics 2020-08-05 Tianyu Liu

Motivated by the observation of partial magnetic order in kagome-based magnets, we study the classical kagome Ising antiferromagnet, known as kagome spin ice, including further-neighbor interactions at zero and finite temperature. While the…

Strongly Correlated Electrons · Physics 2024-06-04 Eric C. Andrade , Matthias Vojta

Direct detection of spontaneous spin fluctuations, or "magnetization noise", is emerging as a powerful means of revealing and studying magnetic excitations in both natural and artificial frustrated magnets. Depending on the lattice and…

Mesoscale and Nanoscale Physics · Physics 2023-11-15 M. Goryca , X. Zhang , J. Ramberger , J. D. Watts , C. Nisoli , C. Leighton , P. Schiffer , S. A. Crooker

The structure of bound magnetic polarons in an antiferromagnetic matrix is studied in the framework of two-dimensional (2D) and three-dimensional (3D) Kondo-lattice models in the double exchange limit (J_H >> t). The conduction electron is…

Strongly Correlated Electrons · Physics 2007-05-23 S. L. Ogarkov , M. Yu. Kagan , A. O. Sboychakov , A. L. Rakhmanov , K. I. Kugel

Frustrated spin-ice systems support emergent gauge fields and fractionalized quasiparticles that act as magnetic monopoles. Although artificial platforms have enabled their direct visualization, access to their quantum-coherent dynamics has…

Strongly Correlated Electrons · Physics 2026-05-20 Krzysztof Giergiel , Piotr Surówka

The kagome lattice, known for its strong frustration in two dimensions, hosts a variety of exotic magnetic and electronic states. A variation of this geometry, where the triangular motifs are twisted to further reduce symmetry, has recently…

We have studied the temperature and magnetic field dependence of the total magnetic moment of large-area permalloy artificial square spin ice arrays. The temperature dependence and hysteresis behavior are consistent with the coherent…

Mesoscale and Nanoscale Physics · Physics 2022-08-17 N. S. Bingham , X. Zhang , J. Ramberger , O. Heinonen , C. Leighton , P. Schiffer

Monte Carlo simulation results are reported on magnetic ordering in ABC stacked Kagom\'{e} layers with fcc symmetry for both XY and Heisenberg models which include exchange interactions with the eight near-neighbors. Well known degeneracies…

Strongly Correlated Electrons · Physics 2015-06-03 V. Hemmati , M. L. Plumer , J. P. Whitehead , B. W. Southern

Magnetic frustration effects in artificial kagome arrays of nanomagnets with out-of-plane magnetization are investigated using Magnetic Force Microscopy and Monte Carlo simulations. Experimental and theoretical results are compared to those…

Mesoscale and Nanoscale Physics · Physics 2015-06-22 I. A. Chioar , N. Rougemaille , A. Grimm , O. Fruchart , E. Wagner , M. Hehn , D. Lacour , F. Montaigne , B. Canals

Frustrated systems exhibit remarkable properties due to the high degeneracy of their ground states. Stabilised by competing interactions, a rich diversity of typically nanometre-sized phase structures appear in polymer and colloidal…

Artificial spin ices (ASIs) are designable arrays of interacting nanomagnets that span a wide range of magnetic phases associated with a number of spin lattice models. Here, we demonstrate that the phase of an artificial kagome spin ice can…

Mesoscale and Nanoscale Physics · Physics 2022-11-04 Breno Cecchi , Nathan Cruz , Marcelo Knobel , Kleber Roberto Pirota

Artificial spin ices (ASIs) arranged in square formations have been explored from the perspective of reconfigurable magnonics. A new frontier in ASIs is their three-dimensional (3D) extension. Here, we numerically explore the ferromagnetic…

Mesoscale and Nanoscale Physics · Physics 2025-01-20 Ghanem Alatteili , Alison Roxburgh , Ezio Iacocca

We present an in-depth analysis of MnRuAs, a compound crystallizing in the P$\bar{6}$2m symmetry with a distorted kagome lattice, revealing its distinctive structural, magnetic, and electronic properties through state-of-the-art ab initio…

Materials Science · Physics 2025-01-14 Anusree C , Andrzej Ptok , Paweł Sobieszczyk , G. Vaitheeswaran , V. Kanchana

We study polycrystalline samples of KCu3As2O7(OH)3, a new candidate spin-1/2 kagome antiferromagnet, by magnetic susceptibility and heat capacity measurements above 2 K. The unique arrangement of the 3z2 - r2 and x2 - y2 orbitals on the…

Materials Science · Physics 2015-06-04 Yoshihiko Okamoto , Hajime Ishikawa , Gøran J. Nilsen , Zenji Hiroi

Frustration in the presence of competing interactions is ubiquitous in the physical sciences and is a source of degeneracy and disorder, giving rise to new and interesting physical phenomena. Perhaps nowhere does it occur more simply than…

Mesoscale and Nanoscale Physics · Physics 2015-06-16 Cristiano Nisoli , Roderich Moessner , Peter Schiffer

Kagome lattice hosts a plethora of quantum states arising from the interplay of topology, spin-orbit coupling, and electron correlations. Here, we report symmetry-breaking electronic orders tunable by an applied magnetic field in a model…

Materials Science · Physics 2023-11-13 Huimin Zhang , Basu Dev Oli , Qiang Zou , Xu Guo , Zhengfei Wang , Lian Li

Based on density functional theory and symmetry analysis, we present a comprehensive investigation of electronic structure, magnetic properties and possible structural distortion of magnetic kagome metal FeGe. We estimate the magnetic…

Strongly Correlated Electrons · Physics 2023-08-02 Hanjing Zhou , Songsong Yan , Dongze Fan , Di Wang , Xiangang Wan

Artificial spin ices are ensembles of geometrically-arranged, interacting nanomagnets which have shown promising potential for the realization of reconfigurable magnonic crystals. Such systems allow for the manipulation of spin waves on the…

Mesoscale and Nanoscale Physics · Physics 2020-04-21 Ezio Iacocca , Sebastian Gliga , Olle Heinonen

Magnetic kagome materials provide a fascinating playground for exploring the interplay of magnetism, correlation and topology. Many magnetic kagome systems have been reported including the binary FemXn (X=Sn, Ge; m:n = 3:1, 3:2, 1:1) family…

Quantum magnetic properties in a geometrically frustrated lattice of spin-1/2 magnet, such as quantum spin liquid or solid and the associated spin fractionalization, are considered key in developing a new phase of matter. The feasibility of…

Strongly Correlated Electrons · Physics 2018-03-21 J. Gunasekera , A. Dahal , Y. Chen , J. Rodriguez , L. Harriger , S. Thomas , T. Heitmann , V. Dugaev , A. Ernst , D. K. Singh